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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 23 · 40 questions
TalentJR

How to do it in your head (Biggest part first): Split the 3-digit number into hundreds, tens and ones. Multiply the hundreds and keep that number in your head. Multiply the tens and add, then multiply the ones and add.

NameDateTime takenScore ___ / 40
  1. 1.115 × 4 =
  2. 2.237 × 7 =
  3. 3.482 × 4 =
  4. 4.924 × 3 =
  5. 5.799 × 9 =
  6. 6.418 × 8 =
  7. 7.779 × 4 =
  8. 8.654 × 8 =
  9. 9.848 × 6 =
  10. 10.938 × 7 =
  11. 11.411 × 7 =
  12. 12.899 × 8 =
  13. 13.215 × 8 =
  14. 14.951 × 8 =
  15. 15.766 × 3 =
  16. 16.668 × 6 =
  17. 17.859 × 9 =
  18. 18.523 × 9 =
  19. 19.232 × 7 =
  20. 20.176 × 8 =
  21. 21.703 × 9 =
  22. 22.947 × 5 =
  23. 23.867 × 5 =
  24. 24.691 × 4 =
  25. 25.418 × 3 =
  26. 26.231 × 5 =
  27. 27.176 × 4 =
  28. 28.303 × 8 =
  29. 29.261 × 4 =
  30. 30.914 × 8 =
  31. 31.639 × 5 =
  32. 32.622 × 6 =
  33. 33.309 × 4 =
  34. 34.945 × 4 =
  35. 35.144 × 9 =
  36. 36.781 × 6 =
  37. 37.182 × 9 =
  38. 38.886 × 7 =
  39. 39.852 × 9 =
  40. 40.347 × 3 =

Answer key

  1. 460
  2. 1659
  3. 1928
  4. 2772
  5. 7191
  6. 3344
  7. 3116
  8. 5232
  9. 5088
  10. 6566
  11. 2877
  12. 7192
  13. 1720
  14. 7608
  15. 2298
  16. 4008
  17. 7731
  18. 4707
  19. 1624
  20. 1408
  21. 6327
  22. 4735
  23. 4335
  24. 2764
  25. 1254
  26. 1155
  27. 704
  28. 2424
  29. 1044
  30. 7312
  31. 3195
  32. 3732
  33. 1236
  34. 3780
  35. 1296
  36. 4686
  37. 1638
  38. 6202
  39. 7668
  40. 1041

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